Scientific thought in the twentieth century :  an authoritative account of fifty years' progress in science / 
edited by A. E. Heath 
 - London :  John 's Court,  1951 
 - xv, 387 p. ;  22 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> PND 2.20 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--History
<br/><br/><label>Dewey Class. No.: </label>509